You know if your human is feeling upset, all you need do is to go and sit quietly beside them. Make sure they know you are there. If they keep on being upset, growl lightly like you are talking to them, then sit quietly - repeat if necessary - and soon they'll be feeling better.
If they are really bad give a light woof and then go sit near the phone and woof at it. They'll soon get the message to call their friend.
